Dnsmasq up to 2.80 /src/helper.c create_helper information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.7 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Dnsmasq up to 2.80 (Domain Name Software). Affected is the function create_helper
of the file /src/helper.c. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on availability. CVE summarizes:
A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
The weakness was shared 01/07/2020 (Website). The advisory is available at thekelleys.org.uk. This vulnerability is traded as CVE-2019-14834 since 08/10/2019. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.
Upgrading to version 2.81 eliminates this vulnerability.
Product
Type
Name
Version
- 2.0
- 2.1
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
- 2.7
- 2.8
- 2.9
- 2.10
- 2.11
- 2.12
- 2.13
- 2.14
- 2.15
- 2.16
- 2.17
- 2.18
- 2.19
- 2.20
- 2.21
- 2.22
- 2.23
- 2.24
- 2.25
- 2.26
- 2.27
- 2.28
- 2.29
- 2.30
- 2.31
- 2.32
- 2.33
- 2.34
- 2.35
- 2.36
- 2.37
- 2.38
- 2.39
- 2.40
- 2.41
- 2.42
- 2.43
- 2.44
- 2.45
- 2.46
- 2.47
- 2.48
- 2.49
- 2.50
- 2.51
- 2.52
- 2.53
- 2.54
- 2.55
- 2.56
- 2.57
- 2.58
- 2.59
- 2.60
- 2.61
- 2.62
- 2.63
- 2.64
- 2.65
- 2.66
- 2.67
- 2.68
- 2.69
- 2.70
- 2.71
- 2.72
- 2.73
- 2.74
- 2.75
- 2.76
- 2.77
- 2.78
- 2.79
- 2.80
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.7
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 3.7
NVD Vector: 🔍
CNA Base Score: 3.7
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Dnsmasq 2.81
Patch: 69bc94779c2f035a9fffdb5327a54c3aeca73ed5
Timeline
08/10/2019 🔍01/07/2020 🔍
01/08/2020 🔍
03/19/2024 🔍
Sources
Advisory: RHSA-2020:1715Status: Not defined
CVE: CVE-2019-14834 (🔍)
CVE Duplicate: 🔍
Entry
Created: 01/08/2020 09:19Updated: 03/19/2024 19:54
Changes: 01/08/2020 09:19 (37), 01/08/2020 09:24 (12), 08/23/2023 10:10 (4), 03/19/2024 19:46 (16), 03/19/2024 19:54 (19)
Complete: 🔍
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